>From 1.8.1:
This is a "development" release of mdadm. It should *not* be
considered stable and should be used primarily for testing.
The current "stable" version is 1.8.0.
Your email shows "VERS = 9000". Was that a command line option? Or output
from mdadm?
The only other odd thing I see... You have the largest chunk size I have
seen (-c512). But I don't know of any limits.
I did create an array with this command line. No problems.
mdadm -C /dev/md3 -l5 -n8 -c512 /dev/ram[0-7]
from cat /proc/mdstat:
md3 : active raid5 [dev 01:07][7] [dev 01:06][6] [dev 01:05][5] [dev
01:04][4] [dev 01:03][3] [dev 01:02][2] [dev 01:01][1] [dev 01:00][0]
25088 blocks level 5, 512k chunk, algorithm 2 [8/8] [UUUUUUUU]
Send output of:
mdadm -D /dev/md0
I am using mdadm V1.8.0 and kernel 2.4.28.
Guy
-----Original Message-----
From: linux-raid-owner@xxxxxxxxxxxxxxx
[mailto:linux-raid-owner@xxxxxxxxxxxxxxx] On Behalf Of Bjørn Eikeland
Sent: Sunday, January 09, 2005 8:39 PM
To: linux-raid@xxxxxxxxxxxxxxx
Subject: raid 5 created with 7 out of 8
Hi, I'm trying to set up a raid5 array using 8 ide drives (
/dev/hd[e-l] ) but I'm having a hard time.
I'm using slackware 10, kernel 2.4.26 and madm 1.8.1 (downloading
2.4.28 overnight now)
The problem is mdadm creates the array with 7 of 8 drives up and
running and the last as a spare and does not start recovering with the
spare. And it will not let me remove it and re-add it. Below follows a
script output of the whole thing (less repartitioning the drives and
zero'ing any remaining superblocks)
Any help will be greatly appreciated.
-thanks
root@filebear:~# mdadm -C /dev/md0 -l5 -n8 -c512 /dev/hd[e-l]1
VERS = 9000
mdadm: array /dev/md0 started.
root@filebear:~# cat /proc/mdstat
Personalities : [linear] [raid0] [raid1] [raid5]
read_ahead 1024 sectors
md0 : active raid5 hdl1[8] hdk1[6] hdj1[5] hdi1[4] hdh1[3] hdg1[2]
hdf1[1] hde1[0]
1094017792 blocks level 5, 512k chunk, algorithm 2 [8/7] [UUUUUUU_]
unused devices: <none>
root@filebear:~# mdadm /dev/md0 -f /dev/hdl1
mdadm: set /dev/hdl1 faulty in /dev/md0
root@filebear:~# mdadm /dev/md0 -r /dev/hdl
mdadm: hot removed /dev/hdl1
root@filebear:~# mdadm /dev/md0 -a /dev/hdl1
mdadm: hot add failed for /dev/hdl1: No space left on device
root@filebear:~# mdadm /dev/md0 -f /dev/hde1
mdadm: set /dev/hde1 faulty in /dev/md0
root@filebear:~# mdadm /dev/md0 -r /dev/hde1
mdadm: hot removed /dev/hde1
root@filebear:~# mdadm /dev/md0 -a /dev/hde1
mdadm: hot add failed for /dev/hde1: No space left on device
-
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